The Haruspex: "Beware the Ides of March"
__Julius Caesar, Act 2, Scene 1, by W. Shakespeare

*14-15 March - Federal Reserve Meeting
There is speculation, . . . the likelihood among the "wise guys" has risen to 90%, . . . that the Federal Reserve will raise interest rates. More "expensive" borrowing could dampen economic spirits, . . . and suggests a potential slowdown may be in the offing.

*15 March - US Debt-Ceiling to be Re-Instated
In 2015 with the Government bumping against the legal Debt-Ceiling Congress passed legislation to allow borrowing to continue until 15 March 2017 without regard to any ceiling, . . . sorta putting things off until the next Administration. The US Government only has enough "cash" to keep things going for 2, or maybe 3 months or so without borrowing after that.
Will the exemption be renewed? Will a new debt-ceiling be established to permit additional borrowing to keep the Government running?
Or, . . . maybe not?

*15 March - Formal Initiation Of Brexit
Theresa May plans to formally notify the European Union of the British exit on March 15th triggering two years of negotiations which may impact the global economy repeatably for a while.

Maybe there's nothing to it. Higher interest rates, . . . Federal inability to borrow/spend money, . . . European Union splitting, . . . pfft !

Maybe things'll turn out OK. After all, . . . that's what Julius Caesar thought.

Or maybe will there be fire and brimstone coming down from the skies, rivers and seas boiling, forty years of darkness, earthquakes, volcanoes, . . . the dead rising from the grave, . . . human sacrifice, dogs and cats living together, mass hysteria !

Ref: The Weirdest Moment in Economic History
Ref: Ghostbusters